A nucleus of Ux1 has a half-life of 24.1 days. How long a sample of Ux1 take to change to 90% of it to Ux2 ? A nucleus of Ux1 has a half-life of 24.1 days. How long a sample of Ux1 take to change to 90% of it to Ux2 ? October 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related